| Adding the new floor on the existing one if fine. You don't wanna pretend to make it float. The isolation is pure for thermal purposes and make it less squeaky. Since your floor is tiled on, probably?!, a concrete floor your save. Concrete doesn't flank that easy. It's the wooden floor that'll do the flanking. But, if it's just one room it's nothing to worry about. The only thing I could think of that should be trouble, is the (now) noticable resonating of the floor. |